def rating(n):
	if(n < 600):
		print(8)
	elif(n < 800):
		print(7)
	elif(n < 1000):
		print(6)
	elif(n < 1200):
		print(5)
	elif(n < 1400):
		print(4)
	elif(n < 1600):
		print(3)
	elif(n < 1800):
		print(2)
	elif(n < 2000):
		print(1)
a = int(input())
rating(a) def rating(n):
	if(n < 600):
		print(8)
	elif(n < 800):
		print(7)
	elif(n < 1000):
		print(6)
	elif(n < 1200):
		print(5)
	elif(n < 1400):
		print(4)
	elif(n < 1600):
		print(3)
	elif(n < 1800):
		print(2)
	elif(n < 2000):
		print(1) rating if(n < 600):
		print(8)
	elif(n < 800):
		print(7)
	elif(n < 1000):
		print(6)
	elif(n < 1200):
		print(5)
	elif(n < 1400):
		print(4)
	elif(n < 1600):
		print(3)
	elif(n < 1800):
		print(2)
	elif(n < 2000):
		print(1) n < 600 n 600 print(8) print 8 elif(n < 800):
		print(7)
	 n < 800 n 800 print(7) print 7 elif(n < 1000):
		print(6)
	 n < 1000 n 1000 print(6) print 6 elif(n < 1200):
		print(5)
	 n < 1200 n 1200 print(5) print 5 elif(n < 1400):
		print(4)
	 n < 1400 n 1400 print(4) print 4 elif(n < 1600):
		print(3)
	 n < 1600 n 1600 print(3) print 3 elif(n < 1800):
		print(2)
	 n < 1800 n 1800 print(2) print 2 elif(n < 2000):
		print(1) n < 2000 n 2000 print(1) print 1 n n a = int(input()) a int(input()) int input() input rating(a) rating a def rating(n):
	if(n < 600):
		print(8)
	elif(n < 800):
		print(7)
	elif(n < 1000):
		print(6)
	elif(n < 1200):
		print(5)
	elif(n < 1400):
		print(4)
	elif(n < 1600):
		print(3)
	elif(n < 1800):
		print(2)
	elif(n < 2000):
		print(1) def rating(n):
	if(n < 600):
		print(8)
	elif(n < 800):
		print(7)
	elif(n < 1000):
		print(6)
	elif(n < 1200):
		print(5)
	elif(n < 1400):
		print(4)
	elif(n < 1600):
		print(3)
	elif(n < 1800):
		print(2)
	elif(n < 2000):
		print(1) rating a = int(input()) int(input()) a
def rating(n):
	if(n < 600):
		print(8)
	elif(n < 800):
		print(7)
	elif(n < 1000):
		print(6)
	elif(n < 1200):
		print(5)
	elif(n < 1400):
		print(4)
	elif(n < 1600):
		print(3)
	elif(n < 1800):
		print(2)
	elif(n < 2000):
		print(1)
a = int(input())
rating(a)